From iOS 1 through to the latest iOS 8 build, this extensive infographic charts the evolution of Apple's mobile operating system, from minor software tweaks to major design overhauls. If there's ever an iOS-based pub quiz round, make sure you've got this saved on your phone somewhere. Read More >>

Redditor Heaney555 has compiled this chart, to scale, of every rocket, spacecraft, and space station involved in human spaceflight. Look at the enormity of the Saturn V rocket – it's as long as the International Space Station. Click through for the full image.